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overwhelm

American  
[oh-ver-hwelm, -welm] / ˌoʊ vərˈʰwɛlm, -ˈwɛlm /

verb (used with object)

overwhelms, present (3rd person singular) overwhelmed, past participle, past overwhelming present participle
  1. to overcome completely in mind or feeling.

    overwhelmed by remorse.

  2. to overpower or overcome, especially with superior forces; destroy; crush.

    Roman troops were overwhelmed by barbarians.

  3. to cover or bury beneath a mass of something, as floodwaters, debris, or an avalanche; submerge.

    Lava from erupting Vesuvius overwhelmed the city of Pompeii.

  4. to load, heap, treat, or address with an overpowering or excessive amount of anything.

    a child overwhelmed with presents; to overwhelm someone with questions.

  5. to overthrow.


overwhelm British  
/ ˌəʊvəˈwɛlm /

verb

  1. to overpower the thoughts, emotions, or senses of

  2. to overcome with irresistible force

  3. to overcome, as with a profusion or concentration of something

  4. to cover over or bury completely

  5. to weigh or rest upon overpoweringly

  6. archaic to overturn

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What’s the difference between overwhelm and underwhelm? The over- in overwhelm means “too much” and the under- in underwhelm essentially means “too little,” and the two words can be direct opposites, but they’re usually used in different contexts. Overwhelm most commonly means to cause to be overcome with emotion as a result of an amount of something (work, stress, etc.) that’s just too much to handle. (It can also mean to overpower or physically cover beneath a mass of something). Underwhelm means to fail to impress, especially when that is the expectation. Both words are often used in adjective forms: overwhelmed (overcome to the point of not being able to manage), overwhelming (describing something that leads to feeling overwhelmed), underwhelmed (unimpressed or disappointed), and underwhelming (unimpressive or disappointing). Being overwhelmed isn’t always about stress or other negative emotions. You could be overwhelmed by a friend’s generosity or the birth of a child. Still, it’s usually about feeling a lot. In this way, underwhelm can be the opposite of overwhelm in some situations. For example, the same concert may overwhelm one person (perhaps it’s the first concert they’ve ever attended) but underwhelm someone else (maybe because it doesn’t meet their high expectations). And, yes, whelm is a word. It can mean the same thing as overwhelm, but it’s very rarely used. Here’s an example of overwhelm and underwhelm used correctly in the same sentence. Example: I never want to underwhelm the fans, and sometimes that pressure can overwhelm me, but it all goes away when I walk on stage. Want to learn more? Read the full breakdown of the difference between overwhelm and underwhelm.

Other Word Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of overwhelm

A Middle English word dating back to 1300–50; see origin at over-, whelm

Explanation

Overwhelm means “give a person too much of something.” If your friend agrees to feed your pet fish while you’re on vacation, don’t overwhelm her with requests by also asking her to do your laundry and wash the dishes. While it’s easy to be overwhelmed by chores or complaints, it’s also possible to be overwhelmed by good things — if they occur in large quantities. You might enjoy a stack of pancakes for breakfast, but you'd probably find a truckload of pancakes overwhelming. Sometimes people feel overwhelmed by emotion, and this can be a positive or negative experience, depending on the emotion. For example, you might feel overwhelmed by gratitude if your friend takes excellent care of your fish, but overwhelmed with grief if the fish is accidentally flushed in your absence.

Keep Reading on Vocabulary.com

Vocabulary lists containing overwhelm

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The new album appears designed to tease, coax and overwhelm the listener.

From Los Angeles Times Jul. 21, 2026

They also had lower indicators of oxidative stress, a form of cellular damage caused when unstable molecules known as reactive oxygen species overwhelm the body's protective systems.

From Science Daily Jul. 18, 2026

Blockbuster stock sales are threatening to overwhelm the bull market.

From MarketWatch Jul. 15, 2026

They say the facilities, which house the equipment powering AI and computing systems, could overwhelm the local power supply and hike utility bills.

From The Wall Street Journal Jul. 14, 2026

Burt kept saying Alice Kinnian feels he has an overwhelm** desir to lern.

From "Flowers for Algernon" by Daniel Keyes

Determining this requires finding the point at which the domestically borne share of distortions becomes so large that it overwhelms the tariff revenue.

From The Wall Street Journal Jun. 26, 2026

Even here in the relative safety of Annapolis, Maryland, an advancing armada of amped-up college kids overwhelms me.

From Slate Jun. 24, 2026

Rates may rise even in recession this time, because the supply of Treasury debt overwhelms demand at current yields.

From MarketWatch Apr. 9, 2026

"Sometimes it still overwhelms you," the skater said.

From Barron's Feb. 12, 2026

At the same time, it seems to be more of a reading for the circus as a whole than for Celia in particular, but it is so emotional that it overwhelms the details.

From "The Night Circus" by Erin Morgenstern

If your boss is overwhelmed already, any questions, no matter how fair, might send her into a tailspin.

From MarketWatch Jul. 31, 2026

“With that scheduling pressure and overwhelmed by misgivings about getting the abortion—what if I wanted to proceed but couldn’t later?—I took the first of two pills for a chemical abortion.”

From The Wall Street Journal Jul. 30, 2026

In “Samurai,” Murashige hews closer to someone overwhelmed by responsibility.

From Los Angeles Times Jul. 30, 2026

This means that when it rains, if there is not enough spare capacity, the system and sewage treatment works can be quickly overwhelmed.

From BBC Jul. 22, 2026

As much as he admired Paul and was influenced by his views, Jim sometimes felt overwhelmed by his friend’s self-assurance and charisma.

From "Mountains Beyond Mountains" by Tracy Kidder and Michael French

The Senate opened debate this week on the late South Carolina senator’s legacy legislation—the Lindsey O. Graham Sanctioning Russia and Iran Act—by an overwhelming 86–12 vote.

From Slate Aug. 1, 2026

Back then, at a vote held in Kigali, Rwanda, the support for him was so overwhelming that he was ushered back into office by acclaim, with a storming round of applause replacing a formal vote.

From The Wall Street Journal Jul. 31, 2026

Lowe tells the BBC it acts "quickly and decisively" on the rare occasion someone breaches its standards and that the "overwhelming majority" of guardians go on to be "brilliant, community-minded residents".

From BBC Jul. 30, 2026

I know apartment hunting can be overwhelming, especially when you’re doing it from a different city, and hiring a broker might seem like a convenience that’s well worth the cost.

From MarketWatch Jul. 27, 2026

Yet for the first time in ages life in Osage County went on without his overwhelming presence.

From "Killers of the Flower Moon" by David Grann

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